Rekensommen met eraf tot 100

Erafsommen
1.
60
–
60
=
2.
80
–
20
=
3.
25
–
20
=
4.
10
–
0
=
5.
35
–
30
=
6.
95
–
85
=
7.
85
–
45
=
8.
70
–
15
=
9.
25
–
5
=
10.
10
–
10
=
11.
10
–
5
=
12.
60
–
60
=
13.
5
–
0
=
14.
45
–
40
=
15.
60
–
15
=
16.
85
–
45
=
17.
85
–
85
=
18.
50
–
30
=
19.
95
–
30
=
20.
40
–
35
=
21.
25
–
25
=
22.
45
–
10
=
23.
50
–
0
=
24.
70
–
15
=
25.
60
–
10
=
26.
30
–
30
=
27.
10
–
5
=
28.
55
–
30
=
29.
40
–
30
=
30.
70
–
25
=
31.
35
–
15
=
32.
55
–
45
=
33.
15
–
0
=
34.
35
–
10
=
35.
15
–
15
=
36.
15
–
15
=
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Rekensommen met eraf tot 100
| ANTWOORDEN

Erafsommen
1.
60
–
60
=
0
2.
80
–
20
=
60
3.
25
–
20
=
5
4.
10
–
0
=
10
5.
35
–
30
=
5
6.
95
–
85
=
10
7.
85
–
45
=
40
8.
70
–
15
=
55
9.
25
–
5
=
20
10.
10
–
10
=
0
11.
10
–
5
=
5
12.
60
–
60
=
0
13.
5
–
0
=
5
14.
45
–
40
=
5
15.
60
–
15
=
45
16.
85
–
45
=
40
17.
85
–
85
=
0
18.
50
–
30
=
20
19.
95
–
30
=
65
20.
40
–
35
=
5
21.
25
–
25
=
0
22.
45
–
10
=
35
23.
50
–
0
=
50
24.
70
–
15
=
55
25.
60
–
10
=
50
26.
30
–
30
=
0
27.
10
–
5
=
5
28.
55
–
30
=
25
29.
40
–
30
=
10
30.
70
–
25
=
45
31.
35
–
15
=
20
32.
55
–
45
=
10
33.
15
–
0
=
15
34.
35
–
10
=
25
35.
15
–
15
=
0
36.
15
–
15
=
0
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen